hi..again! I was just recently reading about Mazda Wankels Thermostat
 instead of taking it off why not try a Moroso Water Outlet Restrictor
 and they are cheap!!! like 7 or 8 bucks also you can make them or
 machine them you can get them at www.summitracing.com,has
 <http://www.summitracing.com,has any one tried reduction pulleys? like
 the one in the above pics from www.xtremerotaries.co
 <http://www.xtremerotaries.co they are made for high rpm engines it
 will help with cooling and reduce rotating mass freeing up some HP!!!!
 has anyone tried electric water pump? im just curious on this one and
 also it will free some more HP!!!....hope I helped on this one!
 Javier Perez
 You want to increase water flow in an aircraft engine and not restrict
 it.
 Same goes for an electric water pump.
 The water pump in a rotary consumes only 3 HP.
 Don't use an electric pump in an aircraft engine.
 Paul Lamar


 The guy that built the Endurance used 2 electric water pumps with speed
 controls on them.
 Darren

 First what is an Endurance?
 Paul Lamar


 Endurance was the name of his plane but I remember the guys name now, S
 Todd Bartrim. His plane got me interested in all things rotary, that and
 I used to drive a RX3 30 or so years ago. He built a long range RV 9
 with a 13b....here is his page.
 http://www3.telus.net/haywire/RV-9/C-FSTB.htm

 Darren

 One can do a lot of stupid things to the rotary and get away
 with it if you live in the northern climes. If you over heat
 the metal in the rotor housing the engine will not necessarily stop
 running right away but your rotor housings will be damaged.

 This subject keeps coming up over the last 12 years so I put a new
 article on the web site about it.

 http://www.rotaryeng.net/electric-water-pumps.html

 Read it and find out why you don't want to use an electric
 water pump.

 Paul Lamar


 The restriction on the block outlet is a band-aid for a marginal cooling
 system. It's function is to raise the pressure by the water pump within
 the block to give a few degrees more to the boiling point of the water
 based coolant. The notion that slowing the coolant flow rate help cooling
 is persistant nonsense. Has anyone tried NPG+ in their Wankels? No water,
 370 degree B.P. no need for pressure cap. http://www.evanscooling.com/
 It is required in Rotax four strokes.


 Murry I. Rozansky


I never said it (electric pumps) was a good idea, just pointing someone
out who did. I come from an agricultural background and my design
philosophy is....The perfect machine has no moving parts.

Darren